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gpio: wcove-gpio: add get_direction method

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This patch adds .get_direction method for the gpio_chip structure
of the wcove_gpio driver.

Signed-off-by: Bin Gao <bin.gao@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Bin Gao 2016-08-15 11:03:23 -07:00 committed by Linus Walleij
parent 9c6686322d
commit 7d9e59ce76
1 changed files with 14 additions and 0 deletions
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14
drivers/gpio/gpio-wcove.c
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@ -164,6 +164,19 @@ static int wcove_gpio_dir_out(struct gpio_chip *chip, unsigned int gpio,
CTLO_OUTPUT_SET | value);
}
static int wcove_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio)
{
struct wcove_gpio *wg = gpiochip_get_data(chip);
unsigned int val;
int ret;
ret = regmap_read(wg->regmap, to_reg(gpio, CTRL_OUT), &val);
if (ret)
return ret;
return !(val & CTLO_DIR_OUT);
}
static int wcove_gpio_get(struct gpio_chip *chip, unsigned int gpio)
{
struct wcove_gpio *wg = gpiochip_get_data(chip);
@ -394,6 +407,7 @@ static int wcove_gpio_probe(struct platform_device *pdev)
wg->chip.label = KBUILD_MODNAME;
wg->chip.direction_input = wcove_gpio_dir_in;
wg->chip.direction_output = wcove_gpio_dir_out;
wg->chip.get_direction = wcove_gpio_get_direction;
wg->chip.get = wcove_gpio_get;
wg->chip.set = wcove_gpio_set;
wg->chip.set_single_ended = wcove_gpio_set_single_ended,